Head-to-Head Comparison
Dolphin Liberty 400 vs Aquabot X4
Our pool experts compare features, filtration, specs, and value to help you pick the right robotic pool cleaner.
Aquabot X4 or Dolphin Liberty 400 — which wins?
Our pick: the Aquabot X4
Diving into the Dolphin Liberty 400 vs Aquabot X4, our pool experts weigh filtration, cleaning coverage, smart features, and value. For most pools, the Aquabot X4 is the robot we recommend — and right now you save $200.
Side by Side
Feature Comparison
The features that matter most when comparing the Dolphin Liberty 400 and Aquabot X4.
| Feature | Liberty 400 | X4Our Pick |
|---|---|---|
| Standard Filter | ||
| Wall Climbing | ||
| Anti-Tangle Swivel |
Explained
Compare Features in Detail
Anti-Tangle Cable Swivel
Say goodbye to tangled cords. An anti-tangle swivel lets the robot move 360° around your pool without the cord getting tangled, so you can sit back while it cleans. Learn more ›
Warranty Coverage
A robot is only as good as its warranty. Buying through an Authorized Dealer like Poolbots gets you the full manufacturer warranty — never pro-rated or limited by cleaning cycles — plus a 30-day in-pool trial with no restocking fees. Learn more ›
Watch
Videos
See the Dolphin Liberty 400 and Aquabot X4 in action.
The Details
Specifications
| Liberty 400 | X4 | |
|---|---|---|
| Part Number | — | — |
| Waterline Cleaning | No | No |
| Multi-Media® | No | No |
| Filters Included | — | 1 |
| Filter Cleaning | Filter Basket | Dual Filter Cartridges |
| Cleaning Coverage | Floor and Walls | Floor, Walls |
| Cleaning Cycle | 1.5 hours | 3 hours |
| Number of Brushes | 1 | 1 |
| Cable Length | No Cable | 60ft |
| Anti-Tangle Swivel | — | Yes |
| Pool Types | In-Ground & Above Ground | In Ground |
| Maximum Pool Size | 50 ft | 50 ft |
| Pool Shape | Rectangle, Oval, or Freeform | Rectangle, Oval, or Freeform |
| Obstacles | Steps, Ladder, Drain Cover, Ledges, Pop-Ups | Steps, Ladder, Drain Cover, Ledges, Pop-Ups |
| Surface | Concrete, Plaster, Gunite, Pebble, Tile, Vinyl Liner, Fiberglass | Concrete, Plaster, Gunite, Pebble, Tile, Vinyl Liner, Fiberglass |
| Media-Alert® | — | No |
| Automated Weekly Timer | — | No |
| Remote Operation | No | No |
| Restocking Fee | — | No |
| Warranty | 2 Years | 2 Years |
Go Deeper
Read Our Expert Reviews
Our in-depth reviews are written by pool experts to help you make an informed decision.
Dolphin Liberty 400
Read Dolphin Liberty 400 ReviewAquabot X4
Read Aquabot X4 ReviewKeep Comparing
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What’s Next?
Still narrowing it down? These expert guides and tools make it easy to find the right pool robot for your pool — most ship free, same day.
Pool Robot Buying Guide
Everything to know before you buy your first robot.
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Robot Selector
Answer a few quick questions and get a recommendation.
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Videos
Watch reviews, comparisons, and expert how-tos.
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Pool Volume Calculator
Calculate your exact pool volume to find the right robot.
Read more →Try It in Your Own Pool for 30 Days
Every pool deserves an intelligent robot. If you don't love it, simply return it — we never charge a restocking fee. Free shipping on every order.
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